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3 years ago

Use counters to model two integers with different signs whose sum is positive.Explain how you know the sum is positive.

2 answers:

3 0

if you add two numbers with different sign , but absolute value of positive number is greater than absolute of negative number , sum will be positive ex. -4+7=3 I7I GREATER THAN I-4I, WE SUBTRACT 4 FROM 7 =3 POSITIVE OR -14 +20 =6 POSITIVE , ABSOLUTE VALUE OF 20 GREATER THAN ABSOLUTE VALUE OF -14

wolverine [178]3 years ago

3 0

Answer:

If we want to add two integers of different signs and want to get a result will be a positive integer then,

The positive integer must have larger absolute value and negative integer must have smaller absolute value than the absolute value of a positive integer.

For example: -1 + 3 = 2 Here 3 has larger absolute value and -1 has smaller absolute value. So the result is a positive integer.

But if we take -7 + 2 = -5 , Here -7 has larger absolute value and 2 has smaller absolute value. So the result is a negative integer.

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Find the equation of the line.

hoa [83]

Answer:

y=3x+3

Step-by-step explanation:

To find the slope, find two points and use the rise over run.

Some points you can use are (0, 3) and (1, 6)

The rise is 3 and the run is 1.

3/1 = 1.

The slope is 3.

To find the y-intercept, find the point where x = 0.

(0, 3)

The y-intercept is 3.

Now you can write an equation.

y=mx+b

m is the slope and b is the y-intercept.

y=3x+3

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3 years ago

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3 years ago

Read 2 more answers

1/8 of pizza cost 2 dollars. In an hour, 6 1/4 pizzas were sold. How much money was made at the food booth in that hour

Darina [25.2K]

First of all, you would make 6 1/4 into an improper fraction. This makes it 25/4, then you multiply it by 2 to get 50/8 and have common denominators. Divide that by 1/8, which would be 50. Then since each 1/8 costs 2 dollars you would multiply 50 by 2. So, the answer would be that they made 100 dollars.

4 0

3 years ago

The equation 4x2 – 24x + 4y2 + 72y = 76 is equivalent to

DerKrebs [107]

Answer:

Option 4 is correct.

The equation $4x^2 -24x + 4y^2 + 72y = 76$ is equivalent to $4(x-3)^2 + 4(y+9)^2 =436$

Step-by-step explanation:'

Given equation: $4x^2 -24x + 4y^2 + 72y = 76$

First group the terms with x and those with y;

$(4x^2-24x)+(4y^2+72y) = 76$

Next, we complete the squares.

We can do this by adding a third term such that the x terms and the y terms are perfect squares.

For this we must either add the same value on the other side of the equation or subtract the same value on the same side so that the equality is maintained.

⇒ $4(x^2-6x) +4(y+18y) = 76$